Question

For an 8- bit DAC with reference voltage $V_R$=10 V the analog output voltage for the digital input 1000 0110 is

• A. 5.50 V
• B. 4.75 V
• C. 6.50 V
• D. 5.25 V

Answer 1

The correct option is D 5.25 V

(d)
$Resolution=\frac{V_R}{2^n}=\frac{10}{2^8}=39.06mV$

$Countvalue={\left(10000110\right)}_2={\left(134\right)}_{10}$

$Analogoutputvoltage=134\times 39.06mV$
= 5.234 Volts